On dissimilar metal welding of AISI4140 and AISI410 by GTAW

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Velu, M.^1 ; Dixit, Shantanu^1 ; Choure, Shubham^1

School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu

632 014, India^1

关键词: Austenitic;    Base material;    Base metals;    Dissimilar metal welding;    Dissimilar steel;    Filler materials;    Fusion zones;    Gas tungsten arc welding;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062067/pdf
DOI  :  10.1088/1757-899X/263/6/062067

来源: IOP

【 摘 要 】

This paper presents the results of metallurgical and mechanical examinations of Gas Tungsten Arc Welding of dissimilar steels AISI4140 and AISI410. Two different filler materials viz., ERNiCr3 and SS410 were used. The various properties of the weldments made using the fillers were compared to select the most appropriate one to get the sound joint. The ultimate tensile and yield strengths of the weldments of SS410 were greater than those of ERNiCr3. The fracture occurred at the weld in weldments made with ERNiCr3, whereas, in the base metal of AISI410 for weldments made with SS410. Microstructure of fusion zone of ERNiCr3 was fully austenitic. Microhardness values in the weld of SS410 were higher and fluctuating compared to those in the weld of ERNiCr3. From this research work, it shall be concluded that SS410 is the best filler material to weld these base materials.